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Sheet 26 may consist of the rubber like material without the coating of hektograph composition. a hektograph device comprising a sheet of rubber like material which 1's moisture proof even after considerable vvrinkling and creasing, Which has great tear-resistance, which has toughness combined with some give without undue elasticity, and which has heat sealing qualtities so that a moderate amount of heatwith pressure makes possible an efiective air tight seal at the edges, and a film of hektograph composition on the surfa ce of said sheet. a hektograph device comprising a long rolled up sheet of rubber like material which is moisture proof even after considerable wrinkling and creasing, which has great tear-resistance, which has toughness combined with some give without undue elasticity, and which has heat sealing qualities so that a moderate amount of heat with pressure makes possible an effective a1'r tight seal at the edges, and a fi1m of hektograph composition on the surface of said sheet. a hektograph device comprising a sheet of rubber 1ike maberial which is moisture proof even after consid9rable wrinkling and creasing which has great tear-resistance, which has toughness combined with some give without undue elasticity, and which has heat sealing qualities so that -a moderate amount of heat with pressure makes possible an efieotive air tight sea1 at ehe edges, a. fi1m of hektograph composition 011 the surface of said sheet, and an air and. moisture proof protective covering therefor. a hektograph device comprising a, long rolled up sheet of rubber

Edges, a film of hektograph composition on the surface of seid sheet, and an air and. moisture proof protective covering thereim. . ing qualities so that 5. A hektograph device comprising a 1ong rolled up sheet of rubber like material which is moisture proof even after considerable wrinkling and. creasing, which has great tear resistance, which has toughness combined with some give without undue elasticity, am]. which has heat sea1- a moderate amount of hea.t With pressure makes possible an effective air tight seal at the edges, a film of hektograph compusitpion on the surface of said sheet, and strips of sealing material for the ed.ges of the roll. 6. A hektograph device comprising a sheet of rubber like material which is moisture proof even after considerable wrinkling and creasing, which has great tear-resistance, which has toughness combined with some give without undue elasticity, anal whioh has heat sealing qualities so that a moderate amount of heat with pressure makes possible an effective air tight sea1 ab the edges, a film of hektograph composition on the surfaceof said sheet, and a protective covering therefor of thesame material as said sheet. US99787A 1936-09-08 1936-09-08 Hektograph device Expired - Lifetime US2089092A (en) Priority Applications (1) Application Number Priority Date Filing Date Title US99787A US2089092A (en) 1936-09-08 1936-09-08 Hektograph device Applications Claiming Priority (1) Application Number Priority Date Filing Date Title US99787A US2089092A (en) 1936-09-08 1936-09-08 Hektograph device Publications (1) Publication Number Publication Date US2089092A true US2089092A (en) 1937-08-03 Family ID=22276615 Family Applications

Sealing qualtities so that a moderate amount of heatwith pressure makes possible an efiective air tight seal at the edges, and a film of hektograph composition on the surfa ce of said sheet. 2. A hektograph device comprising a long rolled up sheet of rubber like material which is moisture proof even after considerable wrinkling and creasing, which has great tear-resistance, which has toughness combined with some give without undue elasticity, and which has heat sealing qualities so that a moderate amount of heat with pressure makes possible an effective a1'r tight seal at the edges, and a fi1m of hektograph composition on the surface of said sheet. 3. A hektograph device comprising a sheet of rubber 1ike maberial which is moisture proof even after consid9rable wrinkling and creasing which has great tear-resistance, which has toughness combined with some give without undue elasticity, and which has heat sealing qualities so that -a moderate amount of heat with pressure makes possible an efieotive air tight sea1 at ehe edges, a. fi1m of hektograph composition 011 the surface of said sheet, and an air and. moisture proof protective covering therefor. 4. A hektograph device comprising a, long rolled up sheet of rubber like material Which is moisture proof even afor considerable wrinkling and Creasing, which has great bear-resistancm which has toughness combined with some give without undue elasticity, and which has heat' sealing qualities so that a moderate amount of heat with p-ressure makes possible an effective air tight seal at the

(No Model.) R. H. SMITH. HEKTOGRAPH. No. 342,141. Patented May 1a, 1886. Maya/m mafm'a- UNITED STATES PATENT OFFICE. ROLAND H. SMITH, OF PITTSBURG, PENNSYLVANIA. HEKTOGRAPH. SPECIFICATION forming partiel' Letters Patent No. 342,141, dated May 18l 1886. Application filed October 2, 1884. Serial No. 144,571. (No model.) T a/ZZ whom, it may concern..- Beit known that I, ROLAND H. SMITH, a citizen ofthe United Sta-tes, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Hektographs, of which the following is a specication, reference being had therein to the accompanying drawings. i My invention relates to hektographs, and the object I have in view is to provide sheets of paper with a hektograph material upon one side and a non-adhesive material upon the other, in order that books or packages may beA formed of said sheets Without injury to the face of the sheet in transportation or in use. In the accompanying drawings,which illustrate my invention, Figure' 1 represents a de tached perspective view of two sheets of paper, showing the relation of the hektograph and nonadhesive materials; and Fig. 2 a perspective view of the same in book form. In the manufacture of my invention I first takea sheet or sheets of any ordinary paper, and after heating them sufficiently I Vspread over the face a coating of hektograph material. The heat causes the material to iiow over the sheet so that its surface will be even and smooth. The back of the sheetis provided with a coating of wax or oily material, which will not adhere to the hektograph material upon the face. The sheets thus prepared may be put together in book form or in packages for use or for transportation without danger of damage to the copysurface. The sheets may be washed off for use again,or may be kept intact in case future impression may be needed. The sheets and books may of course be made of any suitable size. I am aware that tar has been used upon one side ofa hektograph sheet; hence I disclaim such. In the drawings, Aindicates the upper surface` of the sheets upon which the hektograph material is placed, and B the under surface of same, which is provided with the nonadhesive material. Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is- As an article of manufacture, a hektograph consisting of a sheet or sheets of paper or other suitable material provided upon one side with a thin coating ofhektograph material and upon the other with a coating of material nonadhesive to the said hek tograph material, the same capable of

US2089092A - Hektograph device - Google Patents Hektograph device Download PDF Info Publication number US2089092A US2089092A US99787A US9978736A US2089092A US 2089092 A US2089092 A US 2089092A US 99787 A US99787 A US 99787A US 9978736 A US9978736 A US 9978736A US 2089092 A US2089092 A US 2089092A Authority US United States Prior art keywords hektograph sheet rubber composition heat Prior art date 1936-09-08 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US99787A Inventor Herrmann Bertha Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Individual Original Assignee Individual Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) 1936-09-08 Filing date 1936-09-08 Publication date 1937-08-03 1936-09-08 Application filed by Individual filed Critical Individual 1936-09-08 Priority to US99787A priority Critical patent/US2089092A/en 1937-08-03 Application granted granted Critical 1937-08-03 Publication of US2089092A publication Critical patent/US2089092A/en 1954-08-03 Anticipated expiration legal-status Critical Status Expired - Lifetime legal-status Critical Current Links USPTO USPTO PatentCenter USPTO Assignment Espacenet Global Dossier Discuss Images Classifications B—PERFORMING OPERATIONS; TRANSPORTING B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS B41L—APPARATUS OR DEVICES FOR MANIFOLDING, DUPLICATING OR PRINTING FOR OFFICE OR OTHER COMMERCIAL PURPOSES;

A perspective view of one form of my invention showing the sheet partly unrolled. Fig. 2 is a, perspective view of this form. showing the sheet entirely rolled up and. sealed from the air. Fig. 3 is a perspective view similar to Fig. 2 but showing a difierent manner o-f sealing from the air. Fig. 4 is a perspective view of another form of 40 the invention. the numeral H designates a long sheet of rubber like y material Which is coated with a film I2 of hektograph composition. This figure shows the sheet in the form 01 a roll I4 from which a, small section has been unrolled for immediate use and Which may or may not be cut oif. the roll I4 may be rolled up on a suitable core or rod lt. Fig. 2 shows the sheet materia1 completely rolled up and also strips I8 of the rubber like material applied at the ends of the roll to make a good moisture and air seal. Fig. 3 shows an alternative construction in which the hektograph roll is covered with a small piece 20 of the rubber like material to which the hekto- 8, 1936, Serial N0. 99,787 FIG. 1 shows a modified form in which a comparatively short piece 22 of the rubber like material' i3 coated with a. fi1m 2A of hektograph composition. T0 protect the hektograph sheet from the action of air and moisture, a protective sheet 26 is applied to the hektograph surface. the